Use the formula #2n^2# How many electrons could energy level five have? Chemistry Electron Configuration Quantum Numbers 1 Answer Junaid Mirza Jun 3, 2018 #2n^2 = 2 × (5)^2 = 50# Answer link Related questions How do I know how to assign quantum numbers to electrons? How many electrons share all of the same quantum numbers? What are the quantum numbers for the first electron in #"H"#, #"He"#, #"Li"#, and #"Be"#? What quantum numbers specify a 6s orbital? What quantum numbers specify a 6d orbital? What quantum numbers specify a 6p orbital? What quantum numbers specify a 4p orbital? What quantum numbers specify a 5p orbital? What quantum numbers specify a 5d orbital? What quantum numbers specify a 3p orbital? See all questions in Quantum Numbers Impact of this question 3373 views around the world You can reuse this answer Creative Commons License